.header {


}

.header li {

list-style:none;

}



.header li a{
display:block;
float:right;
width:150px;
height:40px;
color:black;
line-height:40px;
text-align:center;
text-decoration:none;
background-color:#f0f0f0;
}

.header li a:hover {
background-color:green;
color:white;
font-weight:bold;
}
